Indian Society for Heat and Mass Transfer
DIGITAL LIBRARY

ライブラリ登録: Guest
ホーム アーカイブ 役員 今後の会合
Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019)

ISSN: 2688-7231 (Online)

Numerical and experimental investigations on a single stage GM-type double inlet pulse tube refrigerator for nitrogen liquefaction

Debashis Panda
Department of Mechanical Engineering National Institute of Technology, Rourkela

Manoj Kumar
Department of Mechanical Engineering National Institute of Technology Rourkela, India 769008

Ashok Kumar Satapathy
Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha-769 008, India

Sunil K. Sarangi
Department of Mechanical Engineering National Institute of Technology Rourkela; School of Mechanical Engineering, IIT Bhubaneswar, Odisha, India

Ranjit K. Sahoo
Department of Mechanical Engineering National Institute of Technology Rourkela, India 769008

DOI: 10.1615/IHMTC-2019.290
pages 169-174

要約

In this study, a set of non-linear partial differential equations representing the inside fluid flow, and thermal characteristics of a GM-type double inlet pulse tube refrigerator are transformed into algebraic equations by adopting "finite volume method". Those sets of equations are solved by using Gauss-Siedel iterative methods. By using the numerical model, influences of waiting time of rotary valve, orifice and bypass opening coefficients on cooling capacity, COP and mass flow ratios are studied. The mass flow rate at the pulse tube is obtained from numerical analysis, and then used to design shell-and-tube and mesh-filled hot heat exchangers. A test-rig is constructed to validate the numerical results. The performance of both the hot heat exchangers are studied experimentally. Numerical results show that the proposed numerical model is capable of producing 32.5 W of refrigeration power at 75 K. However, preliminary experimental results show a no-load temperature of 133 K.

購入する $25.00 Check subscription 出版倫理および不正行為 私の図書館員へ推薦 このページをブックマークする